Data management method and data management terminal for a laser gas detector

ABSTRACT

A data management terminal for a laser gas detector, and a data management method thereof are provided. The data management method includes: the data management terminal establishes a connection to a communication port of the laser gas detector, and obtains target gas concentration data in a target region through the connection; the data management terminal creates a target gas concentration log according to the target gas concentration data; and the data management terminal transmits the target gas concentration log to a server.

BACKGROUND Technical Field

The present invention relates to the field of laser telemetry, and in particular, to a data management method and data management terminal for a laser gas detector.

Related Art

A laser telemeter has been widely used as a natural gas leak detection apparatus. Based on wavelength modulation spectroscopy, the telemeter works according to the following basic principles: fixing a laser frequency near a specific absorption peak of methane, modulating the laser frequency at the same time, and perform detection according to correlation between a frequency modulation harmonic signal and a concentration of a target gas to obtain information about the target gas on an optical path.

The laser telemeter may be configured to different types of products, such as a product of a gimbal type, a handheld type, or an unmanned aerial vehicle type. A gimbal-type laser telemeter is generally used to scan and monitor gas leaks in fixed areas (such as natural gas pipelines, gas fields, and natural gas stations). Such telemeters only need to upload real-time measured data directly to a host computer for viewing, and trigger an alarm through the host computer when a leak occurs.

For a portable laser telemeter such as a handheld telemeter or an unmanned aerial vehicle telemeter, an engineer is generally required to enter or approach a hazardous area to perform on-site measurement. However, such laser telemeters do not need to trigger alarms through a host computer. When an on-site measured concentration value of the target gas is higher than a threshold, the engineer contacts an operator to carry out a repair.

In view of the above reasons, data of such laser telemeters only need to be displayed instantly without being stored, categorized, or managed. Consequently, most of such laser telemeters still have no data management system, or manage data in the simplest data export mode.

SUMMARY

To solve the above problems in the conventional technologies, the present invention discloses a data management method of a laser gas detector. Through the data management terminal communicably connected to the laser gas detector, target gas concentration data detected by the laser gas detector in real time is organized into target gas concentration logs, and transmitted to a server, thereby storing, integrating, and managing the data of the laser gas detector.

Specifically, the data management method disclosed in the present invention includes:

a first communication step: a data management terminal establishes a connection to a communication port of the laser gas detector, and obtains target gas concentration in a target region in real time through the connection;

a log creation step: the data management terminal creates a target gas concentration log according to information about the target gas concentration; and

a second communication step: the data management terminal transmits the target gas concentration log to a server, or the data management terminal creates a detection report according to the target gas concentration log and transmits the detection report to the server.

Different from the conventional method of real-time measurement and direct uploading, the data management method provided in the present invention uses the data management terminal to manage the target gas concentration data detected by the laser gas detector, and upload the data to the server through a log or report, thereby solving the data management problem of a portable laser gas detector.

In addition, the data management terminal categorizes the data into logs or reports for uploading as independent files, thereby providing a platform for engineers to manage the data, and enabling each engineer to participate in the uploading, integration, and management of the data. On the other hand, the integration of the data of multiple data management terminals also enables the engineers or server-end managers to have a relatively systematic understanding of the distribution of the target gas concentration at different locations in the managed area. Once a sign of leaks is found, a possible geographic location of the leak point and the range affected and the area involved by the leak can be comprehensively determined according to the target gas concentration and the wind direction at the leak point and the target gas concentration data of other locations uploaded by other data management terminals and the like. In addition, the data received by the server in the data management method in the present invention is target gas concentration logs. Compared with the conventional real-time receiving manner, the method in the present invention facilitates archival, categorizing, downloading, and viewing on the server.

In an exemplary technical solution of the present invention, the data management method further includes:

an image acquisition step: acquiring image data in the target region, where

in the second communication step, the image data is also transmitted to the server, or a detection report that includes the image data is created and transmitted to the server.

After detecting a natural gas leak in an area through measurement, inspection crew do not have the capability to complete a repair task alone in most cases, but require other technicians to work together for the repair task. In this process, the inspection crew may use the precious waiting time before the repair to accurately identify the leak point, acquire image data of a target region, and upload the image data to the server to show the technicians the exact location of the leak point, the operating environment conditions, and the like, thereby facilitating the technician to quickly determine the repair location and the extent of the leak and to prepare the equipment necessary and adaptable to the operating environment.

Further, the data management terminal may be a smartphone, a tablet computer, or a laptop computer. Further, when the data management terminal is a smartphone, a tablet computer, or a laptop computer, or a consumer-level personal digital assistant (PDA) of such type, the terminal itself has a photographing apparatus and can acquire images by using software, without requiring an additional photographing apparatus. In addition, consumer-grade PDAs have been widely applied, and data processing systems of the consumer-grade PDAs generally have higher computing capabilities than industrial-grade PDAs, and a management system can be set up through only configuration of corresponding software support, thereby significantly reducing costs of hardware required for engineers.

In an exemplary technical solution of the present invention, the data management method further includes:

a data correlating step: correlating the target gas concentration log with the image data. Correlating the target gas concentration log with the image data can clearly indicate that the target gas concentration logs and the image file are obtained by the same inspection crew member at the same location through measurement, and there is no need to search for or determine the locations separately.

Further, in an exemplary technical solution of the present invention, the data correlating step is performed at the server or the data management terminal, and a correlation method includes: using a relevant filename as a name, or storing in a same folder both the target gas concentration log and the image data that are to be correlated.

In an exemplary technical solution of the present invention, the data management method further includes: a data viewing step: the data management terminal obtains the target gas concentration log or the detection report from the server for viewing.

In this exemplary technical solution, the same data management terminal simultaneously implements data acquisition (that is, the data management terminal is connected to the laser gas detector and obtains real-time detection data), data integration (that is, sorts out the data into logs or reports, and transmits the logs and reports to the server), and data presentation (that is, obtains the data from the server for viewing). In this way, each engineer can participate in the acquisition, integration, management, and use of the data through the data management terminal available.

Further, in an exemplary technical solution of the present invention, in the data viewing step, the target gas concentration log or detection report obtained by the data management terminal from the server includes a target gas concentration log shared with other data management terminals. By sharing the target gas concentration log uploaded by other data management terminals, each engineer who holds a data management terminal and each server-side manager can have a relatively systematic understanding of the distribution of the target gas concentration at different locations in the involved area. This helps each engineer participate in the leak analysis and the discussion and development of an emergency repair scheme, and helps tackle emergencies such as large-scale multi-point leaks.

In an exemplary technical solution of the present invention, the data management method further includes: a location acquisition step: the data management terminal obtains location information, where in the second communication step, the location information is also transmitted to the server, or a detection report that includes the location information is created and transmitted to the server.

By acquiring and uploading the position information, the location of a measurement point of the inspection crew can be determined.

This technical solution can be used in combination with a technical solution that includes an image acquisition step, and facilitates the operator to retrieve a location of the inspection crew based on the location information, and to find the exact location of the leak point based on content of the image data.

In addition, the above technical solution also enables visual presentation of data on a map. Specifically, the step of presenting data on the map includes: correlating the target gas concentration log to the location information; and after completion of the correlation, the step further includes: displaying a map, and displaying, on the map, a location mark point corresponding to the location information and a target gas concentration value in the target gas concentration log correlated with the location information.

Preferably, the data management terminal is a smartphone, a tablet computer, or a laptop computer, and a GPS positioning system of the data management terminal is operated by a program instruction to obtain location information.

In an exemplary technical solution of the present invention, the laser gas detector is a handheld laser methane telemeter, or a gimbal laser methane telemeter, or an unmanned aerial vehicle-mounted laser methane telemeter.

In an exemplary technical solution of the present invention, the data management terminal is a smartphone, a tablet computer, or a laptop computer.

The present invention further provides a data management terminal applicable to a laser gas detector, including:

a first communication apparatus, capable of being communicably connected to the laser gas detector;

a second communication apparatus, capable of being communicably connected to a server;

one or more processors; and

a memory, configured to store one or more programs to be executed by the one or more processors, where

the one or more programs include instructions used to perform the following steps:

a first communication step: establishing a communication connection to the laser gas detector through the first communication apparatus, and obtaining a target gas concentration in a target region in real time;

a log creation step: creating a target gas concentration log according to information about the target gas concentration; and

a second communication step: transmitting the target gas concentration log to the server through the second communication apparatus, or creating a detection report according to the target gas concentration log and transmitting the detection report to the server through the second communication apparatus.

In addition to the relevant content disclosed in the data management method provided in the present invention, the advantages brought by the data management terminal in the present invention also include: by implementing specific data management steps through a software program, the data management terminal in the present invention can be adapted to various hardware systems. Preferably, the data management terminal is a smartphone, a tablet computer, a laptop computer, or another personal mobile device. The personal mobile device is used as a terminal to build a management system, so that the terminal does not need to be additionally designed or manufactured. Instead, the corresponding software is installed directly on the above device personally held by the engineer, and then the personal mobile device of the engineer may be utilized as a data management terminal, thereby greatly reducing costs of building the system.

For example, when the data management terminal is a smartphone, a Bluetooth or wireless receiving apparatus of the smartphone may be configured as a first communication apparatus, the wireless receiving apparatus or a cellular mobile network of the smartphone may be configured as a second communication apparatus, and a program for performing the foregoing steps is installed in a memory of the smartphone.

In an exemplary technical solution of the present invention, the data management terminal further includes an image acquisition apparatus, and the one or more programs further include instructions used to perform the following steps: an image acquisition step: acquiring image data in the target region through the image acquisition apparatus, where in the second communication step, the image data is also transmitted to the server, or a detection report that includes the image data is created and transmitted to the server.

In an exemplary technical solution of the present invention, the data management terminal is integrally installed with the laser gas detector.

Further, in an exemplary technical solution of the present invention, the data management terminal also includes a visible beam emitting apparatus configured to emit a visible beam that keeps parallel to a measuring laser beam of the laser gas detector.

Because the frequency of the measuring laser beam is generally invisible, engineers face the problem of how to record the leak location. In an exemplary technical solution of the present invention, by setting a visible beam that has the same propagation direction as the measuring laser beam, the engineers can use a spot location of the visible beam as an indicator of an irradiation position of the measuring laser beam, and photograph and record the location by also using the image acquisition apparatus.

Furthermore, in an exemplary technical solution of the present invention, the data management terminal further includes a display, and the one or more programs further include instructions used to perform the following steps: setting a threshold of a target gas concentration; responding, by the data management terminal, and entering a pre-shooting mode when the target gas concentration in the target region reaches the threshold of the target gas concentration; and displaying, by the data management terminal that has entered the pre-shooting mode, the target gas concentration in real time through the display, recording the target gas concentration, and turning on the image acquisition apparatus to receive image data in the target region.

When handling a task of finding and recording a leak point, the inspection crew need to perform multiple steps, which are time-consuming and difficult to operate. The data management terminal provided by this exemplary technical solution can automatically trigger the terminal to enter a pre-shooting mode when a leak point is detected in the work of determining and recording a leak point, remind the leak inspection crew while displaying the target gas concentration data. In this way, the user can conveniently determine the target gas concentration in real time, and turn on a camera to get ready for shooting and storage anytime. Through the above settings, the inspection crew only need to operate the entire process on the integrally installed device. The operation method is simple and fast, and greatly reduces the time and difficulty of operations of the inspection crew to bring better user experience.

Preferably, the one or more programs further include instructions used to perform the following steps: characterizing a specific region in the image; and determining a target gas concentration value in the target gas concentration log, and correlating the target gas concentration value with the characterized region.

Furthermore, preferably, in the step of characterizing a specific region in the image, a marking tool is provided to mark a region in the image data to characterize the region or characterize a region that includes an irradiation location of the visible beam in the image data.

In an exemplary technical solution of the present invention, the data management terminal includes a display, and the one or more programs further include instructions used to perform the following step: a data viewing step: the data management terminal obtains the target gas concentration log from the server for viewing.

In an exemplary technical solution of the present invention, a positioning apparatus is further included, and the one or more programs further include instructions used to perform the following steps: a location acquisition step: the data management terminal obtains location information, where in the second communication step, the location information is also transmitted to the server, or a detection report that includes the location information is created and transmitted to the server.

In an exemplary technical solution of the present invention, the laser gas detector is a handheld laser methane telemeter, or a gimbal laser methane telemeter, or an unmanned aerial vehicle-mounted laser methane telemeter. Preferably, the laser gas detector is a handheld laser methane telemeter, or an unmanned aerial vehicle-mounted laser methane telemeter. Furthermore, preferably, the laser gas detector is a handheld laser methane telemeter. The present invention also provides a laser gas detector that has a data management terminal.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of system configuration of a data management terminal according to Embodiment 1 of the present invention;

FIG. 2 is a schematic flowchart of a data management method according to Embodiment 1 of the present invention;

FIG. 3 is a schematic diagram of system configuration of a data management terminal according to Embodiment 2 of the present invention;

FIG. 4 is a schematic flowchart of a data management method according to Embodiment 2 of the present invention;

FIG. 5 is a schematic diagram of a data viewing interface of a data management terminal according to Embodiment 2 of the present invention;

FIG. 6 is a schematic diagram of an image acquisition step performed by an engineer according to Embodiment 2 of the present invention;

FIG. 7 is a schematic diagram of system configuration of a data management terminal according to Embodiment 3 of the present invention; and

FIG. 8 is a schematic diagram of a pre-shooting mode interface of a laser gas detector according to Embodiment 3 of the present invention.

DETAILED DESCRIPTION

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. In addition, the present invention is not limited to the following embodiments, and various embodiments falling within the scope of technical concept of the present invention may be adopted.

Embodiment 1

As shown in FIG. 1, this embodiment first provides a data management terminal 2 and a data management system that includes the data management terminal 2 and that is configured to manage a handheld laser telemeter. The data management terminal 2 is a personal digital assistance apparatus held by an engineer, and includes a first communication apparatus 202, a second communication apparatus 204, a processor 206, and a memory 208. The memory 208 stores a program to be executed by the processor 206, and can invoke the first communication apparatus 202 and the second communication apparatus 204 to transmit and receive data.

For convenience of illustration, FIG. 1 only shows a circumstance in which a server 3 corresponds to a laser gas detector 1 and a data management terminal 2. In fact, each server 3 may correspond to two or more data management terminals 2, and can manage and transmit the data. In addition, each data management terminal 2 may work together with different laser gas detectors 1.

Specifically, referring to FIG. 2, the memory 208 stores a program instruction executable by the processor 206, and the program instruction can perform the following steps:

S100: A first communication step: connecting a detector, and obtaining target gas concentration data of a target region;

controlling a first communication apparatus 202 to establish a communication connection to a communication port 102 of the laser gas detector 1, where a data management terminal 2 can obtain target gas concentration data in the target region through the communication connection. Preferably, through the communication connection, the data management terminal 2 communicates in real time with the laser gas detector 1 that is measuring the target gas concentration in the target region, so as to obtain the target gas concentration data in the target region in real time. However, through the communication connection, the data management terminal 2 may also communicate with the laser gas detector 1 that has completed the measurement, so as to obtain the target gas concentration data that has been measured and stored. The communication port 102 of the laser gas detector 1 is a communication module interface that is of the laser gas detector 1 and that is configured before shipment or added after shipment.

S200: A log creation step: creating a target gas concentration log according to information about the target gas concentration data.

According to the target gas concentration data obtained from the laser gas detector 1, the data management terminal 2 creates a target gas concentration log available for being read and processed by the server 3 or the data management terminal 2.

S300: A second communication step: transmitting the target gas concentration log to the server.

Through the second communication apparatus 204, the data management terminal 2 transmits to the server 3 the target gas concentration log generated in step S200. The server 3 aggregates and manages the target gas concentration logs obtained from the same data management terminal 2 or different data management terminals 2.

In this embodiment, the data management terminal 2 converts real-time data into a report or log that can be read and processed by the server and local applications. On the one hand, the engineers are equipped with corresponding data management terminals 2, so that each engineer can participate in the uploading, integration and management of data. On the other hand, the data of multiple data management terminals is integrated and aggregated, so that the engineers or server-side managers can have a relatively macroscopic understanding of the distribution of the target gas concentration in a management area. For example, when it is detected that a target gas concentration at a location is relatively high but without exceeding a threshold, the engineers tend to believe that there is a possible leak point near the location. However, it is often difficult to determine the exact location of the leak point due to the flow and diffusion effect of the gas. After the management system uses the management method provided in this embodiment, the engineers can obtain target gas concentration data at a nearby location from the server, where the target gas concentration data is uploaded by other data management terminals 2. The engineers can accurately determine the location of the leak point with reference to environmental factors. In addition, the availability of a platform for engineers to operate the data helps each engineer participate in analysis of the leak, discussion of a repair scheme, and decision-making in real time, helps tackle emergencies such as large-scale multi-point leaks, facilitates rapid and comprehensive assessment and prediction of the range affected and the area involved by the leaks, and provides timely data and information support for repairs, evacuation, or warning. In addition, in this embodiment, the data received by the server is the target gas concentration logs that have been sorted out by the data management terminal 2. Compared with the conventional real-time receiving mode, the technical solution in this embodiment facilitates data archival and access.

Embodiment 2

As shown in FIG. 3, this embodiment first provides a data management terminal 2 and a data management system that includes the data management terminal 2 and that is configured to manage a handheld laser telemeter (a laser gas detector 1). The data management terminal 2 in this embodiment is a smartphone, and includes a first communication apparatus 202 (a Bluetooth communication apparatus), a second communication apparatus 204 (a cellular mobile network), a processor 206, a memory 208, an image acquisition apparatus 210 (a camera), and a positioning apparatus 212 (a GPS positioning system). The processor 206 is communicably connected to the first communication apparatus 202, the second communication apparatus 204, the memory 208, the image acquisition apparatus 210, and the positioning apparatus 212 to transmit data and control the running of devices.

An application to be used together with the data management terminal 2 is stored in the memory 208 of the smartphone. After being authorized by the user, the application is executed by the processor 206 and can control the first communication apparatus 202 and the second communication apparatus 204 of the smartphone to perform data processing, transmission, and reception, control the camera of the smartphone as the image acquisition apparatus 210 to take a photo or video, and control the GPS positioning system of the smartphone as the positioning apparatus 212 to obtain geographic coordinate information.

Because the hardware requirements of the data management terminal 2 in this embodiment do not exceed the hardware conditions that can be met by a conventional smartphone, the data management system can work without design and production steps of the data management terminal, and can work directly by running an application installed on the smartphone of the engineer equipped with the laser gas detector 1. In this way, the personal mobile device of the engineers is used as the data management terminal in this embodiment, thereby greatly reducing the cost of building the system.

Specifically, referring to FIG. 4, with a mobile phone application installed, the data management terminal 2 can execute instructions to perform for the following steps:

S100: First communication step: connecting a detector, and obtaining target gas concentration data of a target region.

The first communication apparatus 202 is controlled to establish a Bluetooth connection to the communication port 102 of the laser gas detector 1. Through the Bluetooth connection, a smartphone can obtain the target gas concentration data in the target region, and store the data in the memory 208. The stored data includes the measurement time and the target gas concentration corresponding to the measurement time. Preferably, through the Bluetooth connection, the smartphone communicates in real time with the laser gas detector 1 that is measuring the target gas concentration in the target region, so as to obtain the target gas concentration data in the target region in real time. However, through the Bluetooth connection, the smartphone may also communicate with the laser gas detector 1 that has completed the measurement, so as to obtain the target gas concentration data that has been measured and stored.

The communication port 102 of the laser gas detector 1 is a Bluetooth communication module that is of the laser gas detector 1 and that is configured before shipment or added after shipment. The obtained target gas concentration may be presented on the display of the data management terminal 2 in the form of numerals, histograms, line graphs, and the like to facilitate reading by the engineers.

S102: Image acquisition step: acquiring image data in the target region through the image acquisition apparatus.

The laser gas detector 1 is equipped with a visible beam emitting apparatus 104 (a visible light laser). The propagation direction of the visible beam emitted by the visible beam emitting apparatus 104 is substantially parallel to the propagation direction of the measuring laser beam of the laser gas detector 1. The spot location of the visible light laser is used as a reference to indicate the irradiation location of the measuring laser beam emitted by the laser gas detector 1. The irradiation location may be used to a guidance for the image acquisition apparatus 210 to acquire images at a gas leak point. By acquiring the image data in the target region and uploading the data to the server, it is convenient for the inspection crew to show the exact location of the leak point to the operator.

S200: Log creation step: creating a target gas concentration log according to information about the target gas concentration data.

After the image acquisition step in S102 is completed, the confirmation of the leak point is completed. At this time, a target gas concentration log readable by an application on the server 3 or the data management terminal 2 may be created according to the target gas concentration data acquired within a time range from the beginning of searching for the leak point to the end of search and confirmation of the leak point. The target gas concentration log includes at least a part of the measurement time stored in step S100 and the target gas concentration corresponding to the measurement time.

S202: Location acquisition step: obtaining location information through the location acquisition apparatus.

The GPS positioning system of the smartphone serves as a positioning apparatus 210 to obtain geographic coordinates of the location where the smartphone is located. The coordinates reflect the location of the inspection crew at the time of measurement. Subsequently, the operators can retrieve the location based on the geographic coordinates, and look around and compare surroundings with the content of the image data to find the exact leak location.

S204: Data correlating step: correlating the target gas concentration log with the image data and the location information. This step occurs after steps S200, S102, and S202.

Target gas concentration log files, image files, and location information texts are named according to a fixed filename naming format standard, so as to correlate the target gas concentration logs to the image data and the location information and indicate uniformity of the target gas concentration logs and the image data with respect to the recording time and recording place.

S206: Report creation step: creating a detection report according to the target gas concentration logs, the image data, and the location information. In this embodiment, not only can the detection report be subsequently uploaded to the server, it can also be selectively stored in the local memory 208 when being created.

S300: Second communication step: transmitting the detection report to the server.

The detection report created in step S206 is transmitted to the server through the cellular data network, and the server performs data processing on the detection reports obtained from different data management terminals 2. The data processing process includes at least: extracting the target gas concentration value recorded in the target gas concentration logs in the detection report, and extracting the location information. The target gas concentration value may be the highest value of the target gas concentration in the target gas concentration logs, or a mean value of the target gas concentration in the target gas concentration logs, or the last recorded target gas concentration value in the target gas concentration logs. The data processing process may further include: extracting information that is obtained by processing and analyzing the target gas concentration logs, for example, a geographical distribution map of the target gas concentration, or the time-varying target gas concentration data.

S400: Data viewing step: obtaining a detection report from the server for viewing.

The data management terminal 2 obtains the detection report from the server for viewing. Detection reports available for viewing include the detection reports shared by other data management terminals. Through the above scheme, the data management terminal provided in the present invention can simultaneously implement functions of data acquisition, integration, and presentation. Therefore, each engineer can participate in the acquisition and use of data, the content of the management system is more comprehensive, and information is more interoperable.

In addition, the data viewing function of the data management terminal 2 provided in this embodiment is not limited to viewing the detection report, but also includes viewing a geographic location-based distribution map of the target gas concentration. Referring to FIG. 5, the presenting, by the data management terminal 2, the geographical location-based distribution map of the target gas concentration includes the following steps:

displaying a map 214; and

displaying, on the map 214, a location mark point 214 a corresponding to the location information and the target gas concentration value 214 b in the target gas concentration logs correlated with the location information, according to the target gas concentration value information recorded in the target gas concentration logs extracted in the data processing process in the second communication step in step S300 and according to the location information.

Although the target gas concentration value 214 b is presented by displaying a numerical value in this embodiment, a person skilled in the art may also select another appropriate way of presentation according to actual conditions, for example, use the difference of visualization parameters such as color, size, and shape to present the difference of the target gas concentration value between different regions.

To clearly describe the data management terminal 2 in this embodiment and the working mode thereof, the following describes in detail the method of data acquisition performed by engineers by using the data management terminal 2 together with the laser gas detector 1 in this embodiment.

Referring to FIG. 6, the laser gas detector 1 has a visible beam emitting apparatus 104 (not shown in FIG. 6, see FIG. 3). The visible beam emitting apparatus 104 is a laser capable of emitting a visible beam 108 a. As described above, the emergent direction of the visible beam 108 a emitted by the laser keeps substantially parallel to the emergent direction of the measuring laser beam 106 a of the detector. To meet measurement requirements, the measuring laser beam 106 a is generally an invisible beam. Therefore, in this embodiment, by setting the visible laser beam 108 a emitted in the same direction to be the measuring laser beam 106 a, the engineer can use the location of a spot 108 b of the visible laser beam 108 a as an indicator of the irradiation location 106 b of the measuring laser beam 106 a during measurement, so as to help find a leak point.

The spot 108 b can not only help find the leak point, but also work together with the image acquisition function of the data management terminal 2 in this embodiment to mark the leak point after the leak point is found. As shown in FIG. 6, during photographing and recording, the engineer can maintain the location of the laser gas detector 1 static after marking the leak point with the spot 108 b, and control the camera of the mobile phone to photograph the leak point. Due to the high brightness of the laser spot, the determined leak point location can be clearly displayed on the photo.

It should be noted that although the steps enumerated in the data management method provided in this embodiment are performed sequentially, a person skilled in the art may perform deletion or replacement of the steps and adjust the order of the steps according to actual conditions. Without departing from the essence of the present invention, such variations shall fall within the protection scope of the present invention. For example, the execution order between the three steps S102, 200, and S202 is interchangeable. For another example, if communication with the laser gas detector 1 that has completed measurement is performed through a Bluetooth connection in step S100 to obtain the target gas concentration data measured and stored, this step can also occur after steps S102 and S202. In addition, some steps in this embodiment, such as S102, S202, and S400, may also be deleted or replaced according to actual needs.

Embodiment 3

Referring to FIG. 7, this embodiment provides a laser gas detector 1 that includes a data management module 20. The data management module 20 is installed inside the laser gas detector 1 and electrically connected to a detection module 10 of the laser gas detector 1, so that measured concentration data of the target gas is directly read through the first communication apparatus 202. The data management module 20 of the laser gas detector includes a first communication apparatus 202, a second communication apparatus 204, a processor 206, a memory 208, an image acquisition apparatus 210, and a positioning apparatus 212. For the connection methods and main functions of and the data management method applied by the foregoing components, reference may be made to Embodiment 2, and the details are not described herein again. To visually present data and interaction interfaces, the laser gas detector 1 in this embodiment includes a display 30.

With respect to the laser gas detector 1 in this embodiment, because the data management module 20 is integrally installed with the detection module 10. Optical axes of a measuring laser beam emitting apparatus 106 of the detection module 10, a visible beam emitting apparatus 104, and an image acquisition apparatus 210 of the data management module 20 may be configured to be approximately parallel to each other, thereby greatly facilitating image acquisition of the engineers.

The laser gas detector 1 in this embodiment may also automatically enter a pre-shooting mode to improve efficiency of image acquisition of the engineers.

The data management module 20 is configured to be capable of executing an instruction for performing the following steps:

S001: Threshold setting step: setting a target gas concentration threshold 801;

S100: First communication step: The processor 206 obtains a measured value 802 of the target gas concentration from the detection module 10 in real time through a communication port 102 and the first communication apparatus 202.

When it is detected that the measured value 802 of the target gas concentration reaches the preset target gas concentration threshold 801, the processor controls the laser gas detector 1 to enter a pre-shooting mode. An interaction interface displayed in the case of the pre-shooting mode is shown in FIG. 8.

When the laser gas detector 1 enters the pre-shooting mode, the display 30 displays the measured value 802 of the target gas concentration in real time, and stores measurement data in the memory 208 continuously or in multiple attempts. At the same time, the image acquisition apparatus is turned on to receive image data 804 in a target region. In this embodiment, the display screen 30 is a touchscreen. Preferably, in the pre-shooting mode, a shooting icon 803 is displayed, so as to receive a user instruction of storing the image data 804.

When handling a task of finding and recording a leak point, the inspection crew need to perform multiple steps, which is time-consuming and difficult to operate. With the pre-shooting mode being available, when a leak or a target gas concentration that is high enough for setting off a warning is detected, the laser gas detector 1 can be automatically triggered to enter the pre-shooting mode. While reminding the inspection crew of the leak, the laser gas detector can display the current target gas concentration data promptly to facilitate user confirmation. In this way, the inspection crew can directly determine a leak point by observing the measured value 802 data of the target gas concentration, and as soon as the leak point is determined, turn on the camera to get ready for shooting and storage anytime. Through the above technical solution, the inspection crew only need to operate the entire process on the integrally installed device. The operation method is simple and fast, and greatly reduces the time and difficulty of operations of the inspection crew.

Another difference between the data management method in this embodiment and that in Embodiment 2 is that: In this embodiment, after completion of the image acquisition step in S102 and before the second communication step in S300, the method further includes:

characterizing a rectangular region 805 in the image data 804; and

determining a target gas concentration value in the target gas concentration log, and correlating the target gas concentration value to the characterized region.

In this embodiment, an image recognition module (not shown) recognizes pixels corresponding to the spot 108 b in the image data 804 by using the differences in color and luminance, and then marks a rectangular region 805 centered on the pixels to characterize the region. Subsequently, the rectangular region 805 is correlated with the target gas concentration value in the target gas concentration log to show the leak point to an operator. In other embodiments of the present invention, the region may also be characterized in other forms. For example, a marking tool may be provided for the user, and the user may mark a specific region in the image data 804 obtained through photographing to show the leak point.

For other steps that can be performed by the data management module 20 in this embodiment, reference may be made to the data management terminal 2 described in Embodiment, and the details are not described herein again.

In addition, it should be noted that the communication connection modes between components in the embodiments of the present invention are not limited to those enumerated in the embodiments. A person skilled in the art may configure the communication connections implemented through cables, infrared data communication, Bluetooth, universal serial bus, IEEE1394, Zigbee, wireless local area network, or other appropriate means depending on actual conditions.

The technical solutions of the present invention have been described above with reference to the accompanying drawings. However, it is to be readily understood by those skilled in the art that the protection scope of the present invention is not limited to the detailed description of embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present invention, and such changes or replacements shall all fall within the protection scope of the present invention. 

1-20. (canceled)
 21. A method for managing data performed by a data management terminal that is portable and associated with a laser gas detector, the method comprising: establishing, by the data management terminal, a communication connection between the data management terminal and the laser gas detector; obtaining, by the data management terminal, through the communication connection, target gas concentration data of a target region from the laser gas detector; creating, by the data management terminal, a target gas concentration log according to the target gas concentration data of the target region; and transmitting, by the data management terminal, the target gas concentration log to a server.
 22. The method according to claim 21, further comprising: obtaining, by the data management terminal, image data of the target region from the laser gas detector; and transmitting, by the data management terminal, the image data of the target region to the server.
 23. The method according to claim 22, further comprising: correlating, by the data management terminal, the target gas concentration log with the image data of the target region; and creating, by the data management terminal, a detection report according to the target gas concentration log and the image data, wherein the transmitting the target gas concentration log to the server comprises transmitting the detection report to the server.
 24. The method according to claim 23, wherein the correlating, by the data management terminal, the target gas concentration log with the image data of the target region comprises: using, by the data management terminal, a relevant filename as a name for the target gas concentration log and the image data of the target region, respectively, or using a same folder where the target gas concentration log and the image data of the target region are to be correlated.
 25. The method according to claim 21, wherein the data management terminal is an integrated device within the laser gas detector.
 26. The method according to claim 21, further comprising: obtaining, by the data management terminal, the target gas concentration log from the server for viewing.
 27. The method according to claim 26, wherein the target gas concentration log obtained by the data management terminal from the server is shared with other data management terminals that are connected to the server.
 28. The method according to claim 21, further comprising: obtaining, by the data management terminal, location information of the target region; and transmitting, by the data management terminal, the location information of the target region to the server.
 29. The method according to claim 28, further comprising: correlating, by the data management terminal, the target gas concentration log with the location information of the target region; and displaying, by the data management terminal, a map, and a location mark point corresponding to the location information of the target region and a target gas concentration value in the target gas concentration log correlated with the location information of the target region on the map.
 30. The method according to claim 21, wherein the laser gas detector is a handheld laser methane telemeter, or a gimbal laser methane telemeter, or an unmanned aerial vehicle-mounted laser methane telemeter, and wherein the data management terminal is a smartphone or a tablet computer or a laptop computer.
 31. A portable data management terminal for managing data of a laser gas detector, the portable data management terminal comprising a communication apparatus, a processor and a memory coupled to the processor and having processor-executable instructions stored thereon, which when executed, cause the portable data management terminal to perform a method, comprising: establishing a communication connection to the laser gas detector; obtaining, over the communication connection, target gas concentration data of a target region from the laser gas detector; creating a target gas concentration log according to the target gas concentration data of the target region; and transmitting the target gas concentration log to a server.
 32. The portable data management terminal according to claim 31, wherein the method further comprises: obtaining image data of the target region from the laser gas detector; correlating the target gas concentration log with the image data of the target region; and creating a detection report according to the target gas concentration log and the image data, wherein the transmitting the target gas concentration log to the server comprises transmitting the detection report to the server.
 33. The portable data management terminal according to claim 32, wherein the data management terminal is integrated within the laser gas detector.
 34. The portable data management terminal according to claim 31, further comprising a display, wherein the method further comprises: setting a threshold of a target gas concentration; in response to the target gas concentration data of the target region reaching the threshold of the target gas concentration, entering a pre-shooting mode; displaying the target gas concentration data of the target region in real time; recording the target gas concentration data of the target region; and capturing image data of the target region from the laser gas detector.
 35. The portable data management terminal according to claim 31, wherein the method further comprises: obtaining image data of the target region from the laser gas detector; characterizing a specific region in the image data of the target region; determining a target gas concentration value in the target gas concentration log; and correlating the target gas concentration value in the target gas concentration log with the characterized specific region in the image data of the target region.
 36. The portable data management terminal according to claim 31, wherein the method further comprises: obtaining the target gas concentration log from the server for viewing.
 37. The portable data management terminal according to claim 31, wherein the method further comprises: obtaining location information of the target region; correlating the target gas concentration log with the location information of the target region; and creating a detection report according to the target gas concentration log and the location information of the target region, wherein the transmitting the target gas concentration log to the server comprises transmitting the detection report to the server.
 38. The portable data management terminal according to claim 31, wherein the portable data management terminal is a smartphone or a tablet computer or a laptop computer.
 39. The portable data management terminal according to claim 31, wherein the method further comprises: obtaining image data of the target region from the laser gas detector; obtaining location information of the target region; correlating the target gas concentration log, the image data of the target region, and the location information of the target region; and creating a detection report according to the target gas concentration log, the image data of the target region, and the location information of the target region, wherein the transmitting the target gas concentration log to the server comprises transmitting the detection report to the server.
 40. A portable laser gas detection system comprising: a laser gas detector; and a data management terminal, wherein the data management terminal comprises a communication apparatus, a processor and a memory, the memory storing instructions that when executed by the processor configure the data management terminal to perform a method comprising: establishing a communication connection to the laser gas detector; obtaining, over the communication connection, target gas concentration data of a target region that is detected by the laser gas detector; creating a target gas concentration log according to the target gas concentration data of the target region; and transmitting the target gas concentration log to a server. 